The FBI is investigating Alexander Torshin, the deputy governor of Russia’s central bank, and whether he funneled money into the NRA to help them spend money during the election, McClatchyDC reports. It is illegal to use foreign money to help influence American elections.

The extent of evidence investigators have against Torshin or how long they have been looking into him were unclear, according to the news outlet.

The NRA reported spending $55 million during the 2016 election, including $30 million specifically in support of Trump–triple what it spent backing former Republican presidential candidate Mitt Romney in 2012.

According to Open Secrets, politically active non-profits like the NRA are not required to disclose their donors.

Andrew Wyrich is a politics staff writer for the Daily Dot, covering the intersection of politics and the internet. Andrew has written for USA Today, NorthJersey.com, and other newspapers and websites. His work has been recognized by the Society of the Silurians, Investigative Reporters & Editors (IRE), and the Society of Professional Journalists (SPJ).